Materials related to Joseph Buchtel, a Portland photographer and inventor. Collection includes receipts, 1859-1864; photocopy newspaper clippings; U.S. patents for Joseph Buchtel, Henry Stutsman and Eugene D. White for miscellaneous inventions, 1896-1899; printed ephemera; and diary extracts.

Papers and records relating to the business interests of Philip Buehner (1858-1940), an engineer and lumberman. Buehner developed municipal water-supply projects in Washington state and Oregon, and, in partnership with with Wolff & Zwicker Iron Works, supplied pipelines for the Bull Run water system for Portland, Oregon. Buehner also operated multiple Oregon lumber companies.

Collection consists of miscellaneous papers belonging to Frank A. Bullington, an inventor in Portland, Oregon. These include patents, designs, finances, and other documents regarding Bullington Motors.

Leslie G. Ehmann attended Benson Polytechnic High School in Portland, Oregon, joined Esco Corp. in 1936, served as an engineer and designer, and retired in 1971. He also designed lift truck components for Hyster Company. Collection includes catalogs, specifications and price lists for Esco and Hyster products, 1941-1984, including lift trucks, logging equipment, rigging equipment and swage presses; patents; and plans for an adjustable rubber coupling.

Papers of inventor and artist Eli Sheldon Glover include diaries describing travels across the United States, correspondence with his son, and patents and advertisements for his inventions.

Patents for a cultivator designed by Samuel P. Kimball (1851-1938) filed in the United States and Canada. Kimball was a fruit grower in the area of Salem, Oregon.

Collection of materials assembled by the Oregon Historical Society relating to patents and government developed inventions. Includes material concerning: John Francis Connell, Joseph Sevick, Andrew Smith and other inventors; patents from around the world for photo printing, industrial machinery, washing machines, locks and safes, etc.

Records of an iron manufacturing company of Portland, Oregon, that produced mostly sawmill and transmission machinery. Includes financial records, letter books, time books, correspondence, patent materials, and pamphlets and brochures. Most records date from the 1880s to the early 1920s.

Papers of Victor Wiegand Strode include a biography by Ruth H. Strode, circa 1944, as well as patents, correspondence, drawings, and newspaper clippings regarding his inventions, including the Aeroliner and the Aerohydrocraft, 1928-1941. Also included are drawings of the Aerohydrocraft, the Aeroliner, and other miscellaneous inventions.

Collection includes design drawings, patents, and miscellanea regarding inventions by Neville E. Walker, mostly model airplanes.